单项选择题
The boss told us not to use more material than is necessary.
A. 老板让我们按需要用料,别多用材料。
B. 老板让我们不要多用材料,这没必要。
C. 老板没让我们用必须要用的材料。
D. 老板让我们不要用不必要的材料。
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单项选择题
NO more messages were heard so that we began to worry if George Was dead.
A. 再也没有得到乔治的消息,我们开始担心他是不是死了。
B. 没听到乔治更多的消息,如果他死了,我们会很担心的。
C. 我们担心如果乔治死了,就再也得不到消息了。
D. 没有听到让我们担心乔治安危的消息。
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单项选择题
This is the second time that John __________ in his final exam.
A. has failed
B. fails
C. failed
D. failing
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